Gadget for restricting Wii gaming time

[Munkeepye]

Does anyone know of a gadget/software which can limit the hours spent playing the Wii? With the Easter holidays looming, I am dreading my sons' addiction to the Wii. There is something for the XBox, but I can's seem to find anything for Wii. Please help!

a egg timer??

sorry not very helpful

On off switch?

the off switch

you can put a pin number on it so that they can't get access without the code, then use the oven timer.

A high cupboard with a lock - Wii without the controls is pretty boring